var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var session = require('express-session');


var index = require('./routes/index');
var users = require('./routes/users');
var data = require('./routes/data');
var douban = require('./routes/douban');
var comment = require('./routes/comment');
var items = require('./routes/items');
 // 只是引入，有没有去使用它？
//var comment = require('./routes/comment');

var app = express();

// view engine setup jsTemplate
app.set('views', path.join(__dirname, 'views')); // 设置所有可视页面的路径文件
app.set('view engine', 'ejs'); // ejs 是一种模板引擎，类似的还有很多，比如jade等

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());

// 使用session的配置
app.use(session({
  secret:'recommend 128 bytes random string',
  cookie: { maxAge: 20* 60 * 1000 }, //单位是毫秒
  resave: true, // 如果来了一个新的请求，不管原来在不在，重新存储一个
  saveUninitialized:true // 存储一些未初始化的session
}))




app.use(express.static(path.join(__dirname, 'public'))); // 静态文件都在public下面

app.use('/', index); // 使用引入进来的模块 index指向/根目录
app.use('/users', users); // users 指向 /users
app.use('/data',data);
app.use('/douban',douban);
app.use('/comment',comment);
app.use('/items',items);

//app.use('/comment', comment); // users 指向 /users
// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
